We went snorkeling with not only real snorkeling goggles, but "Adventure Eye" goggles--fully equipped with a built in digital camera and video camera. The video portion has all the fish, but I still haven't been able to watch all of it because it made me nauseous...think Blaire Witch Project under water.
A huge sunken barge we found. It was full of big fish and so large that we could swim all around inside it.